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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for November 30, 2006
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Open Help Requests for GM
Help Request Answers
1999 Buick Regal LS 3.8L Stall VIN: 2G4WB52K5X
hi to all, this vehicle when you come to a stop, and idle only a few sec. will stall and restart as soon as you crank it. it is intermittant i have drove it yesterday for nearly 2 hours and nothing wrong. today it stall 3 times in about 5 hours running. while ...
1996 Cadillac DeVille 4.6L Blower housing VIN: 1G6KD52YXT
Greetings group. I have this cadillac "Devil" with a broken evaporator/blower case. I have ordered the housing and looked at Alldata for repair info. The closest information that I can find is the evaporator replacement. It quotes 9.8 hours and involves droppi...
1997 Chevrolet S10 LS 4.3L Starting VIN: 1GCCS19X8V
This truck has several problems the customer shut the truck off and then when he went to start it back up it died and he said then it wouldn't restart so he was going to push it out of the way and he couldn't get it out of park. Here's what I found while check...
1998 Chevrolet Tahoe 5.7L Poor Idle Quality VIN: 36NEK18R4W
Greetings: We have a Tahoe that runs good on the road but misfires at idle and sets 1 code for #6 misfire. We have put in new plugs, plug wires,air+fuel filters and a new injector on cylinder #6. Performed a decarbonization treatment and confirmed a good fuel ...
1998 Chevrolet S10 2.2L Misfire VIN: 1GCC1948WK
This truck came in for a tune up/diagnostic. The SES light comes on with KOEO and when the truck is started it goes out. I took the truck for a test drive and it is ruuning bad/ missing. I brought the truck in and hooked it up to my SOLUS and cannot ge...
1998 Chevrolet Cavalier 2.2L temp VIN: 1G1JC5243W
Hellooooo out there. Cavalier came in as overheating. Lower hose where t-stat is does not get hot t-stat not opening. Replaced stat & retested same condition. Completed block test & failed test 3 times. Replaced head gasket with new head bolts (did not send he...
2000 Chevrolet Astro 4.3L No Start, Hesitation, Surge, Cuts out VIN: 1GBDM19W4Y
when cold, lately its been 28-31 degrees it has a hard time starting. changed coolant temp and air temp sensors, common but didn't fix it. did fuel injection service, bg thru injectors, didn't help. fuel pressure seems to hold but seems a little low, 55 psi ru...
2002 Chevrolet Express 3500 5.7L Starting VIN: 1GCHG35R92
The van momentarily starts but shuts off immediately and backfires and has no power (it will not rev up) The more we try to start it, the more it pops & backfires like it wants to run backwards (seems to be a timing problem). We have replaced coil, ignition mo...
2002 Chevrolet Tahoe LS 5.3L abs VIN: 1GNEK13Z12
Truck came into shop with the complaint thatABS would apply at low speeds. Checked codes no codes. Test drove toconfirm customer complaint, ABS would apply at speeds [...] MPH. Brought truck into shop put on hoist removed front wheels found rotors rust...
2002 Chevrolet Impala 3.8L MIL Lamp on
Hi folks, 2002 Impala LS 3800 seriesII. DTC P0410 Secondary AIR Injection Malfuntion. I ran the DTC on a Solus scanner and then performed an output test with a vacuum gauge T'd in to the exhaust valve. Pump runs, solenoid operated, valve opens, trims go up (1... Trouble codes: P0410 (Secondary AIR Injection Malfunction)
2000 GMC Jimmy Diamond Edition 4.3L Hesitation VIN: 1GKDT13W0Y
The problem this vehicle is having is that it falls flat on its face when you try to accelerate for a few moments, and then accelerates normally. There are no codes present. Plenty of fuel pressure(60 psi idling and 65 psi under slight load in gear with brake ...
2001 Oldsmobile Intrigue GLS 3.5L headlights VIN: 1G3WX52H61
hi everyone. HELP!!! this vehicle has a problem on cold starts especially. after sitting, you can start the car and the warning lights in the cluster perform bulb check properly. then after going out, the abs, brake, trac off, pcs, and airbag lights come back ...
2003 Oldsmobile Alero GL 3.4L starter VIN: 1G3NL52E93
Car is back with a intermitent no start, if you relearn the Passlock 2 system it starts for awhile, (2 weeks). Is it the Passlock Sensor in the lock cylinder?
1995 Pontiac Firebird Formula 5.7L Differential VIN: 2G2FV22P2S
Customer want 373 Richmond gears installed. Installed gear set with new bearings. After installation, had whine at 55 mph. Tried different set ups, could not get noise out. Renewed with another ring gear and pinion, whine better but still there some. Have trie...
2001 Pontiac Aztek 3.4L Poor Idle Quality, VIN: 3G7DA03E81
This vehicle has high idle. Scan data shows requested idle speed of 2,000 RPM's. Car is fine until you reach 10 MPH. Once you hit 10 MPH you can see tach go up. I know this is when the VCM controls idle speed. Do not understand why data shows idle request of 2...

Fixes & Summaries for GM
Fix/Summary Answers
1999 Cadillac DeVille 4.6L compressor VIN: 1G6KD54Y4X
Thanks to all that replied. It turned out that the refrigerant temp sensors are bad. We replaced them and all is well. Nice and cold. Thanks again!
1999 Cadillac Catera 3.0L fuel door,radio, trunk release VIN: W06VR52RXX
hey guys the battery guard relay was the culprit on this catera, replaced the relay and all is well thanks for all of your help on this one.
1994 Chevrolet K1500 Suburban Silverado 5.7L heater VIN: 1GNFK16K4R
thanks for all the help- we found a restriction in the fitting on the intake manifold- cleaned it out and back flushed cores- we have heat! thanks also for the info on electrolisis- helpfull- merry christmas- greg and crew
1996 Chevrolet Lumina 3.1L Unknown VIN: 2G1WL52M5T
First I want to thank all who responded. It was definatly the chain jumping only with a load. Customer decided to opt out at this time due to holidays and cost. Thank you all for your help.
1998 Chevrolet Camaro Z28 5.7L Clutch VIN: 2G1FP22G2W
Well, we fixed this problem. Thanks for all who replied. We really learned something on this one. We did replace both the master and slave cylinders with OEM parts. Same thing. We decided to get OEM clutch kit. The problem actually got worse. UNBELIEVABLE!! Wh...
1999 Chevrolet C2500 Suburban LS 6.5L No Start VIN: 3GNGK26FXX
we found vehicle had fuel pressure at injection pump but had low flow. further testing indicated that the fuel lift pump mounted to the frame was weak. we replaced lift pump and engine started and test drive checked out good. we also replaced fuel filter. than...
2003 Chevrolet Express 2500 4.8L Misfire VIN: 1GCGG2SV63
Thanks guys for all the suggestions. This forum is the best. Several of you hit the nail right on the head. After much wire wiggling we found the problem to be a rubbed through wiring harness on top of the left upper control arm bracket, just like several of y... Trouble codes: P0300, P0351.
2003 Chevrolet C4500 Kodiak C4C042 6.6L speedo sensor VIN: 1GDC4E1123
thanks to those who replied.after scoping the sensor we knew the sensor was working properly, so we then went to the harnass. the harnass was not pinched or stretched in anyway so we went to the computer. we bought the programs from gm to flash the pcm, and it...
1986 GMC cab over 231CID Excessive Emissions VIN: J8DB4B1H6G
Well I took some of your advise - I replaced all the filters and added a strong fuel system treament and drove it 30 - 40 miles - took the test and it passed - a heavy solution of fuel treatment and a long drive reduced the opacity from 85 to 45 Thanks for t...
1999 GMC Sierra 1500 SL 5.3L light on dash VIN: 2GTEK19T0X
i would like to thank all who replied to this request all replied with the same answer and it took care of the problem. it was the 4wd switch in the dash thanks again HAPPY HOLIDAYS LARRY
2001 GMC Sierra 2500 SL 6.0L ABS Light VIN: 1GTGK29U11
Thanks for all the replies. Thanks to brandon from florida for the recommendation to send it to absfixer.com. We sent it out on monday, and after talking to the guy on the phone, this is a common problem. Thanks to Jeff, Lance, Dean, Ted, Tye, John, Ross, and ...
2000 Pontiac Grand Am SE 2.4L Misfire, MIL Lamp on VIN: 1G2NF52T2Y
well i would like to thank everyone who took time to help, but unfortunately the customer decided not to go any further with repairs. so i may never know what caused the miss. wish i could have found it but at the same time glad to be rid of the nightmare. tha... Trouble codes: 300 (multiple cyl. misfire), 420 (twc low efficiency).
2004 Pontiac Grand Am GT 3.4L Steering VIN: 1G2NW52E93
Customer opted to live with the problem for now.We did check most of the fixes offered to us.. again thanks for the replies. here are the replies. From: Mike from North Dakota Date: Nov 24, 2006 10:00 AM Take the P/S belt off and pull on the pulley and see i...
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